Found out there is a very thin open area behind the pinbox into the front storage. After removing the screws on the trim behind the pinbox, I pulled the sheeting down and routed the cable to the side of the pinbox and coiled some cable to go to the Tailgater when I set it on the pinbox bracket. Now to run the cable to the rear, add the splitter and connect to the inside cable. Will finally get rid of stringing the cable all over the side of the camper and on the ground.
Thanks B and B.
Well, also just got it run to the back bumper, much easier to run to the back. Just have to anchor the cable and connect to the splitter. Hooray, no more cable laying all over the ground.